Tissue
What are the 4 types of tissue?
Epithelial, Connective, Muscle, Nervous
What is the epiphysis and diaphysis located on the bone?
Diaphysis is the shaft of the bone and the epiphysis is the ends of the bone
Describe the 3 types of muscles
Skeletal- striated, voluntary
smooth- involuntary (digestive)
cardiac- heart, involuntary
Functions of nervous system
coordinate the body's systems by receiving and sending info, maintain homeostasis
What does the cell membrane consist of?
Where are simple squamous cells found and what are their function?
In air sacs of lungs, capillaries and responsible for diffusion and filtration
List the 4 types of joints and examples
Saddle- thumb
Pivot- wrist, elbow, neck
Hinge- knee, ankle, fingers, toes
Ball and socket- Shoulder
Actin vs Myosin
Myosin- thick muscle fibers
Actin- thin muscle fiber
Parts of neurons and function
Dendrites- receive information
Axon- conducts info away from cell
Cell body- nucleus and other organelles
What is the function of the Golgi Apparatus?
package and deliver proteins produced by ribosomes
Difference of tendon and ligament?
Tendon connects muscle to bone and ligaments connect bone to bone
Cervical (C1-C7) Thoracic (T1-T12) Lumbar (L1-L5)
Levels of skeletal muscle
epimysium, perimysium, endomysium, fasicle, muscle fiber, sarcolemma, sarcoplasm, myofibrils
What is the function of myelin?
Insulation around axon which facilitates pass of nerve impulse down neuron
What is the process of Osmosis?
Diffusion of water through a selectively permeable membrane in which water flows from low to high concentration
What are the connective tissue cells and their functions?
Mast cells- prevents clots
Macrophages- consumers
Fibroblasts- produce fibers
What are osteocytes and where are they found?
mature bone cells enclosed in chambers called lacunae with canaliculi that connects them to form rings creating lamellae
Describe the sliding filament theory
Tropomysin and troponin black actin and myosin from binding to each other and neurotransmitter signal release of calcium and ATP which binds to actin which changes ATP to ADP causing it to change shape and form cross bridges with myosin and slides inward causing muscle to contract
Describe the 4 lobes of the brain and their functions
Frontal- motor function, problem solving, higher thinking skills, emotions, personality, language
Parietal- senses, attention, language, and understanding placement in 3D space
Temporal- process info from smell, taste, sound, memory, understanding sentences
Occipital- eyes
The both are active transport that requires ATP because moving against concentration gradient
Exo is secretion out of the cell while Endo is absorption into the cell
What is epidermis bullosa and what does it cause?
Loss of collagen fibers causing dermis to pull away from the epidermis leading to blisters
What are the 4 sutures of the brain and where are they found?
Coronal- between frontal and parietal
lamboidal- between occipital and parietal
squamosal- between temporal and parietal
sagittal- splits hemispheres of brain
Describe the neuromuscular junction
Neuron send neurotransmitter acetylcholine to motor end plate of muscle where receptors receive and contract
List the neuroglial cells and functions
Oligodendrocytes- makes myelin sheaths that provide insulation around axons
astrocytes- connect blood vessels to neurons
microglial cells- immune system, digest debris, kills bacteria
What are the phases of mitosis
Interphase, Prophase, Metaphase, Anaphase, Telophase, Cytokinesis